Safety hoist ring

Details Safety hoist ring Safety hoist ring

1998-01-30

1999-11-09

Kramer, Dean J.

Handling: hand and hoist-line implements

Contact lens applicator

294 89, 403 78, 403164, B66C 166

Patent

active

059799544

ABSTRACT:
An improved safety hoist ring assembly. Fewer and simpler parts are used in the assembly, as compared with the prior art safety hoist rings. It can be easily assembled and disassembled without the use of tools. The assembly includes a lift stud member, a bushing member, a retainer element, a U-bar member and a clevis pin element. The cylindrical bearing surface of the lift stud member is axially received in and retained within the central bore of the bushing member by the retainer element. The external diameter of the retainer element is less than the external diameter of the bushing member. The retainer element is thus sized to pass through any bore in an object to which the bushing member is to be attached. The external surface of the bushing member is provided with some mounting mechanism, such as a thread, which mounts the bushing to an object which is to be lifted. The lateral movement of the lift stud member is restrained by seating a radial flange of the lift stud member into a circular recess in the mating surface of the bushing member. The U-bar member includes two opposed legs having bores that are in axial alignment. The clevis pin element engages the bores of the opposed legs and a load bearing bore in the enlarged end, thereby pivotally attaching the U-bar member to the lift stud member.

REFERENCES:
patent: 1352665 (1920-07-01), Healy
patent: 1642958 (1927-09-01), Joyner
patent: 3492033 (1970-01-01), Mueller
patent: 4558979 (1985-12-01), Andrews
patent: 4570987 (1986-02-01), Wong et al.
patent: 4705422 (1987-11-01), Tsui et al.
patent: 5286130 (1994-02-01), Mueller
patent: 5609454 (1997-03-01), Lee
patent: 5848815 (1998-12-01), Tsui et al.

Affiliated with

Also associated with

Rating

Safety hoist ring does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Safety hoist ring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety hoist ring will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1446136